barta



' o. BARTA. SIERILIZER FOR INSTRUMENTS AND DRESSINGS.

APPLICATION FILED MAR, 26, 1920. Lm Patented July I, w22,

3 SHEETS-SHEET l.

un 44"- l i IIHIMIII. 4| "I,

0. BARTA.

STERILIZER FOR INSTRUMENTS AND DRESSINGS.

APPLscATloN FILED MAR. 26, 1920.

AQLQS, mente@ July 4, 1922 3 SHEETS-SHEET 2.

Patented July 4, 1922 3 SHEETS-SHEET 3 narran ormonali-TA, or ivnw Yoniz, N. Y.

STERILIZER FOR INSTRUMENTS .AND IDR'ESSIlWC-S.V

Applicationled March 26, 1920.

a new and improved sterilizer more especiallyV designed for sterilizing surgical, dental and other instrument-s and dressings, and arranged to insure a thorough sterilizing of the instruments and dressings, to

Vproperly dry the dressings, and to allow of readily placing the instruments and the dressings in the apparatus or to remove the sane therefrom for use after being sterilize Another object is to sterilize the instruments at the same time with the dressings but separate therefrom, and to utilize the saine source of heat for sterilizing both the -instruments and the dressings.

lith these and other objects in view, the invention consists of certain novel features of construction as hereinafter shown and Ldescribed and then specifically pointed out in the claims.

A practical embodiment of the invention is represented in the accompanyingy drawings forming a part of this specification, in

which similar charactersor reference indicate corresponding parts in all the views;

Figure 1 is a side elevation of the improved sterilizer;

being shown in section;

Figure 4 is a front elevation partly in section of the sterilizing vessel for sterilizing .the instruments; and

Figure 5 is a sectional front view of the vessel lfor sterilizing the dressings.

On a suitably constructed stand 10 is mounted a front lower vessel 11 and a rear upper'vessel 12, of which the front lower vessel 11 is for sterilizing surgical., dental and other instruments while the rear upper vessel is intended for sterilizing dressings. The front lower vessel 11 is provided with a horizontal partition 13 dividing the vessel 11 into an upper or sterilizing compartment Specication of Letters Patent.

Patented July 4, 1922.

sei-iai No. 369,004.

14 and a lower or heating compartment 15. The sterilizing compartment 14 is adapted to be partly filled with water and contains a tray 16 having a perforate bottom and perforate walls, and this tray 16 is adapted to contain the :instruments to be sterilized. The tray 16 is provided with pivoted bails 17 engaged by hooks 18 attached to the hinged cover 19 of the chamber 11 and adapted to be swung upward and rearward Vto cause the hooks 18 to lift the hails 17 and consequently the tray 16 with a view to raise the tray 16 out of the watei' contained in the vessel 11. It is understood that when the cover 19 is closed, the tray 16 rests on the partition 13 and the instruments contained in the tray 16 are immersed in the water contained in the vessel 11. The cover 19 is provided at one side adjacent its hinge with a cam 2O engaged by a pin 21 held on the arm 22 of a hand lever 23 fulcrumed at 24 on the corresponding end of the vessel 11. lVhen the hand lever 23 is in the position shown in Figure 1 then the cover 19 is closed, and when the hand lever 23 is swung downward the pin 21 engaging the cam 20 imparts an upward and rearward swinging movement to the cover 19 to move the latter into open position, and in doing so, the hooks 18 lift the tray 16 out of the water contained in the vessel 11. Then the hand lever 23 is swungupward back to its normal position then the cover 19 swings downward and forward int-o closed position.

The heating compartment 15 is adapted to be heated preferably by an electric heater 25 of any approved construction and provided with a conductor cable 26 terminating in a plug 27 for connection with a suitable source o'r1 electrical energy to supply the heater 25 with electricity. A switch 28 under the control of the user is connected with the heater 25 to turn on oi' cut ofi' the electrical energy. The electrical heater is also provided with an electrical switch 30 of any approved construction adapted to automatically cut oit the electrical energy from the heater 25 whenever the heat ei:- ceeds a predetermined temperature.

The rear upper vessel 12 is provided with a sterilizing compartment 40 spaced from the vessel 12 to form a heating chamber 41 surrounding the bottom, the front. back. and the end walls. and the said sterilizing compartment 40 is adapted to be opened and closed by a suitable hinged cover 42 provided with a valved outlet 43 for the escape of steam, as hereinafter more fully eX- plained. The cover 42 is provided with a suitable handle 44 for swinging the cover into open or closed position.

rThe upper portion of the back ot the vessel 11 is provided with a rearwardly extending tube 50 terminatingin an upward extension 51 in which is seated a nipple forming the lower end of a tube 53 attached to the bottom 54 of the rear upper vessel 12. The upper end of the tube 53 is attached to the bottom 55 of' the sterilizing compartment 40 and the portion oi" the bottom 55 encompassed by the tube. 53 is provided with perforations 56 to connect the interior ot the sterilizing compartment 40 with the upper end of the tube 53. rEhe tube 53 is provided with apertures 57 opening into the chamber 41 adjacent the bottom 54, which latter is inclined to drain through the openings 57 into the tube 50 to allow waterV of condensation to return from the chamber 41 into the sterilizing compartment- 14. In

the tube 53 above the openings 57 is arranged a valve 60 having a valve stem 61 extending sidewise through the right-hand side of the vessel 12, and on the outer end Vof the stem 61 is secured an arm or a pointer 62 provided with a handle 63 for turning Vthe stem 61 with a view to move the valve 60 into open or closed position. When the valve60 is in closed position as shown in Figures 2 and 5 then the arm or pointer 62 indicates on a plate 64 and when the valve 60 is moved into open position then the arm or pointer 62 indicates on a plate 65, the said plates 64 and 65 being attached to the right-hand end of the vessel 12, as

plainly shown in Figure 1. The plate 64 is marked Hot air and the plate 65 Steam thus indicating that when the arm or pointer is in register with the plate 64 then the valve 60 is in closed position and the air in the Vthe action of: hot air to dry the dressings after they have been steamed. The surplus steam in the sterilizing chamber 40 is allowed to escape prior to heating the dress-V ings with hot'air by temporarily opening the valve 43 in the cover 42. rThe compartment 40 is provided with perforate trays 70 and 71 having handles 72 and legs 73 for supporting the tray 70, of which the legs rations opening into the second 73 of theA tray 70 support the latter on the bottom 55 with the tray 71 resting with its bottom on the handles 72 oi the tray 70. It is understood that either tray 7 0 or 71 may the arrangement described, the vessels 11 and'12 are arranged in step form tope'rmit of readily opening and closingeither of the vessels 'for placing theY instruments into the vesselll or for placing dressings into the Avessel 12.

It will further be noticed that when the electric heater 25 is in use, the Water inthe sterilizing vessel 11 is heated and vapor is generated which passes by way of the tubes 50 and 53 andthe open valve 60 and perforations 56 into the compartment 40 to act on the dressings contained in the trays and 71 with a view to sterilize the same and while the instruments are sterilized or being subjected to the heated water in the compartment 11. After the dressings have been sterilized, the valve 60 is closed and steam is allowed to escape through the temporarily open valve 43 from the compartment 40. lThe air within the compartment 40 is noW heated from the steam in the chamber 41 to dry the dressings, which can then be removed on opening the cover 42; The instru` ments after being sterilized are moved from lthe tray 16 aiter the cover 19 has beenfswung open and the tray raised as previously eX- plained.

Having` thus described my invention, I

vclaim as new vand desire to secure` by Letters Patent o 1. A sterilizer, comprising Va stand, a sterilizing vessel supported upon the stand and provided with a removable support for the instruments to be sterilized and Y with a heater for the same, a second vessel supported upon the stand in a higher plane than the first vessel, a sterilizing chamber suspended in the second vessel and provided with a support for dressings, a tube leading from the upper part o the first vessel into the Vbottom of the second vessel, a second tube establishing communication between the rrst tube and the bottom of Ythe said chamber,

said secondtube being provided with perfo- Y for heating the liquid to generate steam, a 10 second vessel, a compartment in the last named vessel, removable perforated trays in the Compartment7 and means for admittin the steam from the first vessel into both the second vessel and its compartment or into 15 the vessel alone.

OTTO BARTA. 

